postgresqlHow do I use PostgreSQL operators in my software development project?
PostgreSQL operators are used to perform operations on data stored in a PostgreSQL database. They are used to filter, modify, join, and aggregate data in a query.
For example, the following code block uses the PostgreSQL AND
operator to retrieve data from a table:
SELECT * FROM table_name
WHERE column1 = 'value1'
AND column2 = 'value2';
The output of this query would be all the rows from the table where both column1
and column2
have the values value1
and value2
respectively.
Other PostgreSQL operators include:
OR
: Used to combine two or more conditions.LIKE
: Used to match a string pattern.IN
: Used to check if a value is present in a list.BETWEEN
: Used to check if a value is between two other values.IS NULL
: Used to check if a value isNULL
.
For more information on PostgreSQL operators, please refer to the PostgreSQL documentation.
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